Synchronized photography and sound recording and reproducing



4, 1931. c.w. EBELING y 1,816,832

SYNCHRONIZED PHOTOGRAPHY AND 4SOUND RECORDING AND REPRODUCING mnd Nov. 2s. 1927 2 sheets-snm -1 CHARLES hf AfL/Nq atto/un Aug' 41 c. w. EBELlNG SYNGHRONIZEDPHOTOGRA'PHY AND SOUND RECORDING AND REPRODUCING Filed Nov. 26, 1927 2 Sheets-Sheet 2 Inventoz n, u E 5/ l which, in conjunction with a in motion, sound reproducin Patented Aug. 4, 1913i ...uN-iran lsra W. EBLING, 0l' m rss PATENT osi-ics YORK, N. Y., ABSIGNOB T0 HARRISON' W. 306m proonroaam, a ooaronarion oir n nmwm sYNcnaomznn rno'roeaarn aim soimn comme im maontwme application mea november se, im. semi ne. man. i

This invention relates to improvements in synchronized photography and sound recording and repro ucing, one object of the invention being the provision of a' mechanism in rejecting machine or camera, there are em loyed switches, controlled by the film, to select, for setting mechanisms or recording mechanisms, as t e .case may be,

and for electing the electrical recording or amplifying circuit to. be controlled from the sound recording. or re roducing machine, the resent construction Iheing an arrangement or two sound reproducing or recording machines so that a continuousv action in the recording or reproducing of sound may be attained.

Broadly speaking, there are two sound reproducing machines for operation, one at a time, two film-controlled switches for starting and stopping the respective sound. reproducing mac nes, and two separate means under the control of each sound reproducing machine,whereby such machine has selective means for electin which machine will be controlled by the fin lwhich machine will be connected to the recontrolled switches and 3 cording or amplifying circuit.-

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Int accompanying drawings: Fig. 1 is a diagrammatic view showing all of the circuits used in conjunction with the present invention; f Fig. 2 isa to plan view of av rtion of one of the soun reproducing ines and its icku .arm; -f

ig. 3 is a-top place view, on a lazio scale,

controlled by e of one of the switches pick-Y up wn; l

' 4 is a view in elevation, showing the attached to the sipporting arm;

5, 6 and 7 are etailed views of the switc and actuating member. c

resent invention,4 the gie described in their order to clarify the complete operation, there bein two sound reproducingmachines l Nos. d 2, and a projector P, t e vformer heing indicative of any sound recording or re ro-` ducin machines, while the latter is in icative o the camera or projector.

In describing the source 31, the-amplifying unit 32,

Each sound reproducing machine consists of a turntable 5 6, sup rting the respective pickup carryin arms and 8, each one of which is rovi ed with its respective pickup 9 or-9. `his picku is any form of electrical translator which will act both to record and reproduce and may b'e of a magnetic or inductive type. f

Film controlled oz'romt: One of these circuits, which is termed the starting circuit, includes the battery 10 the conductor 11, including the switch 12, the contacts 13 and 13', which constitutes the starting film-controlled switch of the projector the conductor 15, the` contacts 17 and 18 ofthe phonograph selectingv relay A, the conductor' 19, the starting so enoid 20 of machine No. 1, and the con# ductor 21. When this circuit is closed, the starting relay 20 is energized and through it lthe cage 24 is moved so that the pin 25 rests in the opposite end of the cani slot 26 and in turn operates the resilient operating rod 27, so that the cani 28 projects the clutch arms 29, which in turn causes'the double-toothed element 29 thereon to engage one set of the teeth carriedby the rotating actuating memberiB of machine N o. 1, all as particularl set forth in my co ndin application filed ctober 29 1,927, grial o. 229,599, Thus the turntalile 5 is rotated as the member Bis operated simultaneously and synchronously with the projector. At the same time the pickup, or electrical translator v`9 moves in the honic groove of the record, and the circuit or iperating the amplifier 33 which is enert gize is as ollows: the alternatiig currelxt e p lier 33, the conductor 34, the contacts 35 and 36 of the pickup selecting relay C, the conductor 37, the pickup 9, the conductor 38the contacts 39 and 40 of relay C, and conductor 41; Thus, as the machine No. 1 is operated, the pickup is moved in toward the center, due to the action of the grooves in the sound reproducin record, lwhereas in recording, this woulde operated in the usual mann v by feed screw and the like. As the icku on the end .of the arm 7 approaches e en of the honic groove, the switches S and S of machine N -o. 1 are brought into play, one of other for controllin the the switch S of machine` these switches being used as a selective means for connecting the film controlled switches 13-14 to in turn control the respective sound recording or reproducing machines and the pickup relay C, so that at the end of t e phonic groove of the operating machine the next machine will be made ready to be connected in the amplifyin or recording circuit. f

e lm controlled switch 14-14. controls the stop rela s 56 and 56', while theswitch 13-13f contro s the starting relays 20 and 20', and the circuit for operating the stop relay 56 of machine No. 1, is as ollows, and includes the battery 10, the conductors 23, 21 and 97, the stop solenoid 56, the conductor 98, contacts 100 and 101 of the relay A,-tl1e conductor 102 and 61, the contacts 14 and 14, and the conductor 11 includingutlllie switch 12. When the switch S of mac e No. 1 was closed and the machine No. 1 halted, the coil 67 of the relay A was energized, and the contacts 17--18 and 100-101 were opened and contacts 16-83 and 58-59 were c osed, thus switches 13---13 and 14-14' in open circuit with the relays 20fand 56 of machine No. 2, so that whenthe film vclosed the switch 13-13, the relay 20 was enerthe turntable 6' was set inmotion.

placing the gized and se n this way the switch S controls through the pickup carryin larm of machine' No. 1, the selecting of whigch machine will motion an stopped next by thelm controlled switches. Also' b this arrangement 0.2 when e by its pickup arm will cause the energization of the coil 95 of the relay A so that the oonuwe ifi-83 and .te-59 will be opened ma the contacts 17-18 and 100-101 willl be closed, so that the film controlled switches will be selected to control the solenoids 20 and 56 of the machine No. 1 next. Y The circuit to the starting relay 2,0' ofmachine No. 2 includes the battery 10, the conductor 23, the relay 20'-, the conductor 82, the contacts 83 and 16 of the relay A, the conductor 15, filma contacts 13 and 13, and the conductor 11 and switch 12; while that for controlling the stop relay 56 includes the battery 10, the conductors 23 and 55, the solenoid 56', the conductor 57, the contacts 58 and 59 of the relay A, conductors 60 and 61, film contacts 14 and'14, conductorll and switch 12. Thus it will be seen that lthe two lm controlled switches are so placed as to successively operate the startin and sto ping relays o f machine No. 1 an then to l selected by machine No. 1, to successively opcrate the same relays of machine No. 2.. 'It is also evident that machine No. 2 will cause the selection ofthe lin controlled switches for controlling machine No. 1. The circuits Phorwgraph selecting relay for controllingfthe phonogra h selecting reo. 1, the battery besetin.

62, the conductor 63 having the manual switch Y 64, the conductor 65, the switch S of machine No. 1, conductor 66, coil 67 of the relay A, and conductors 68 and 69. This causes the relay A to bridge contacts 16 and 83 and 58 and 59 and open contacts 17--18 and 100-101 'as above set forth, while the energization of coil 95 causes the relay to close switches 17 and 18 and 100 and 101 and open contacts 16-83 and ,58-59. The circuit controlled by switch S of machine No. 2 includes the battery 62, the conductor 63, switch 64, conductors and 93, the switch S of machine No. 2, conductor 94, the coil 95 and conductors 96 an 69.

Pickup selecting relay: The circuits con-r trolled by the pickup selectinsg relay are in l turn controlled y the switch f the respective machines No. 1 and No. 2, the control from machine No. 1 including in its circuit the battery 70,' the conductor 7l including themanual switch 72, the conductor 73, the coil 74, the conductor 75, thelswitch lS of machine No. 1, the conductors 76 and 77. The circuit controlled by the switch S of machine No. 2 includes the battery 70, the conductor 71, switch 72, conductors 73 and 78 the coil 79, the conductor80, the switch S o machine No. 2, and vconductor 77. When the coil 74 is energized, the contacts 35 and 36, and 39 and 40 of the relay C are closed' and the contacts84 and 85, and 90 and 91 are opened, while when the coil 7 9 is energized the contacts 84 and 85, and 90 and 91 are closed andthe contacts 35 and 36, and 39 and 40 are opened, this switch S being provided for selectively connecting either one of the pickups 9 or 9 with the recording or amplifying circuit. l

The switches S or S', as shown in Figs. 2, 3 and 4, are identical in construction, so that the description of vone will suiice for both. Each includes a support 42 to whichpis at- -tached the spring contacts 43 and 44, the latter being provided with a cam recess or edge 45, the urpose of which will presently ap-` ar. supported by arm 42, to which, in turn, is pivoted the swinging pickup carrying arm 8. Mounted for swin 'ng movement is a shaft which carries t e cam shaped weight 47 which is in the path of to be engaged b`y the arm 8 as the latter approaches the end of the phonic groove.v 'Mounted upon the shaft 46 is an annular member 49 made of a very thin, flexible metal and attached at its lower end to the shaft 46 with its upper endy free to move or flex so that, as the weight is moved by the arm 8, the projection 50 engages the under side-of the edge 45 of the contact 44, causin the contact to en ge the contact 43 when the rod 8 is moved' manuall in the op- .posite direction and engages e arm 52,

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` is entire switch S is connected to `and which is pivoted at 51, the other arm 53 is moved to engage the pin 48 and thus tilt the weight in the opposite direction so that the switch operating member 50 will engage the ready, started, and previous to'gthe phonograph vstarting, devices being moved'into starting fposition, lthe operator places the pickup on outer inclined edge of the edge and beflexed and guided away so as not to cause the contact 44 to engage the contact l43. Thus it will be seen that as the arm 8 approaches the end of the-phonic groove, both lswitches S and S are automatically operated to close their respective contacts 43 and 44, and in to the ooils 74 and turn the various circuits 79 of the rela C and the coils v67 and95 of the relay A, the manual return' of the karm 8 re-setting the switch o ratingthe weight 47 in both switches S an S..simultaneusly.

Operation-When the present apparatus is operated in conjunction with a motion picfy ture the disc of` machine #1 andv when'the film lstarting device has closedv contacts 13-13,

@the electro ymagnet 20 is energized, and -ma- 'chine #1 is 'started. This continues until the-film carr ing device engages contacts v 14,-14', at which time machine #lis stopped due to the'energization of the electro magnet 56, relay A havin bridged contacts 17-18 and 10G- 101, as e ectro magnet 95 was enerized due to the switch S' of machine #2 ving been closed manually or by the arm 8 at the initial starting of the machine. Simultaneously with the stopping of the turntable of machine #1 its arm closes switch S of machine #l and causes 67 on relay A/ to be energizedy so that vcontacts 16-83 and 58-59 were closed. Th'us, when the next starting film carrying device contacts have operated, the contacts 13-13 the electro magnet 20 is energized and machine #2 is brought into play, and continues to play until stopped by the next closure of contacts 14--14' and which causesthe ener zation of the electro magnet 56 and -the ha t- Iing of turntable of machine #2. Simultaclose contacts 17.--18 an neously with the arm 8 of machine2, the closing of switch S of `such machine occurs so that the coil 95 of relsy A is energized to next starting device would set in o ration phonograph machine #1. Thus relfy A` is a phonograph selecting relay and controlled b he'arm actuated switch S of either machine, Athe contacts 14-'14 causing the stoppage of the VYhenv everything isl .1D0-101, and the.

particular phonograph selected by the relay A.

What I claim as new is y 1. The combination with two film-controlled switches, an electrical sound ampliing circuit and two sound reproduci ma'- c inea for operation one at a time o two electrically'operated means in circuit with and under the control of said film controlled switches for selectively starting and stopping said sound reproducing machines and means controlled by .either of said sound reproducing machines for selecting the film controlled switches for controlling the operation of the other machine.

trolled switches, an electrical sound amplimachines for operation one at a time, of two electrically operated means in circuit with and under the control of said film controlled switches for selectively starting and stopping said sound reproducing machines and means `controlled by either of said'sound reproducing machines for-'selecting the film controlled switches for controlling the operation of thel other machine, and another means also controlled by either sound reproducing machine and particularly by the machine set in motion by the film controlled switch for connecting the sound amplifying 'circuit to the machine thus selected.

3. The combination as set forth in claim 1, in which one lof said film controlled switches is for starting the selected machine and the other film controlled switch is for stop ing the same machine after the said mac ine has been operated a predetermined length of time.

4. The combination as setforth in claim 2, in which one of the said film controlled switches is for starting the selected machine and the Aother filmcontrolled switch is for.

stopping the same machine after said .machine has been operated a predetermined length of time.

I5.v The combination as set forth in claim 1, in which the amplifying circuit includes two electrical' pickups, one for each sound reproducing machine, and means whereby the picku of one machine at a time can be connecte in said amplifying circuit, said pickup selection being under the control of the last means.

6. The combination as set forth in claim 2, in which thereis an electrical pickup. to

each sound reproducing machine, and means whereby one at a time is connected in the ampli ing circuit through the last means.

7. e combination as set forth in claim 1', in which there are two pickups and a swinging arm carrying each plckup one to each sound reproducing machine, and a normally open switchdisposed to be closed by each arm after the arm has been caused to ing circuit and two sound reproduclng ao 2. The combination with two lilm-conv `connected from the amp two normally open switches to be closed by carrying arm after the arm has said picku been moved a predetermined distance across the turntable to close two circuits simultaneously to the two last means.

9. The -combination with two iilm controlled switches, two sound reproducing machines including two 'swinging arms, one to each machine, and-an electrical pickup carried by each arm, and an electrical amplifying circuit, of a starting and a sto ping electrical device for each sound re r ucing machine, an electrical lm'sw'itc selecting relay, and means operated by each of said swinging arms for operatin said relay to cause the lm controlled swi es to be placed in operable relation to the starting and stop ping devices of the other machine, or vice versa. Y

10. The combination as set forth in claim 9, characterized by the fact that there is a piclrup selecilg relay whereby either pick. up 1s. connec p ifying c1rcu1t and means operated by each swinging arm or operating said last relay, the swinging arm o onersound reproducing machine causing the o ration of the last re lay to connect theA ic p of the other machine in the ampli g circuit and disconnect the pickup 4of the remaining machine, and vice versa.

In testimon whereof I alix my signature.

W. EBELING.

one at a time with the am 

